A-3.579545-18

HC-49/U A-TYPE CRYSTAL Page 1 of 3 A-3.579545-18 • SPECIFICATIONS PARAMETER VALUE NOMINAL FREQUENCY MODE OF OSCILLATION 3.579545 MHz Fundamental FREQUENCY TOLERANCE AT 25°C ±30 ppm max FREQUENCY STABILITY OVER TEMPERATURE ±50 ppm max OPERATING TEMPERATURE RANGE -20°C to +70°C STORAGE TEMPERATURE RANGE AGING, MAXIMUM LOAD CAPACITANCE EQUIVALENT SERIES RESISTANCE SHUNT CAPACITANCE DRIVE LEVEL -55°C to +125°C ±5 ppm per year 18 pF 180  max 7 pF max 1 mW max • MECHANICAL SPECIFICATION NOTE: Through hole device can withstand 245°C soldering by terminals only R A L T R O N E L E C T R O N I C S ▪ 1 0 4 0 0 N .W . 3 3 r d S T R E E T ▪ M i a m i , F l o r i d a 3 3 1 7 2 ▪ U . S . A . Telephone: 305-593-6033 ▪ Fax: 305-594-3973 ▪ e-mail: sales@raltron.com ▪ web site: http://www.raltron.com HC-49/U A-TYPE CRYSTAL Page 2 of 3 A-3.579545-18 • WAVE SOLDER PROFILE Wave Solder profile Profile Feature SnPb eutectic Pb-Free Average ramp-up rate ~200°C/second typical 1-2°/second max 4°/second ~130°C ~200°C/second typical 1-2°/second max 4°/second ~130°C 235°C 260°C Heating Rate during preheat Final preheat temperature, TS Peak temperature, TP Time within +0°C / -5°C of actual temperature, tP Ramp-down rate 10 seconds 10 seconds 5°C/second max. 5°C/second max. NOTE: This document should serve as recommendation only. Other parameters may also affect soldering, this profile does not guarantee absolute success. Soldering profile should be determined by the equipment manufacturer and customers’ process engineer. • ENVIRONMENTAL PARAMETER MOISTURE SENSITIVITY LEVEL RoHS REACH SVHC HALOGEN-FREE ESD CLASSIFICATION LEVEL TERMINATION FINISH VALUE 1 Compliant Compliant Compliant N/A Sn R A L T R O N E L E C T R O N I C S ▪ 1 0 4 0 0 N .W . 3 3 r d S T R E E T ▪ M i a m i , F l o r i d a 3 3 1 7 2 ▪ U . S . A . Telephone: 305-593-6033 ▪ Fax: 305-594-3973 ▪ e-mail: sales@raltron.com ▪ web site: http://www.raltron.com HC-49/U A-TYPE CRYSTAL Page 3 of 3 A-3.579545-18 • MARKING 3.579 18pF Ryyxxww x – Internal Production ID code y – Year code w – Week code YEAR CODE Year Code 2011 2012 2013 2014 2015 2016 2017 2018 2019 Week 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 • 1 2 3 4 5 6 7 8 9 ALPHA WEEK CODE TABLE Code Week Code Week a b c d e f g h i j k l m n o p q r 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 s t u v w x y z A B C D E F G H I J 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Code K L M N O P Q R S T U V W X Y Z APPROVAL DRAWN BY: APPROVED BY: REVISION: K.Jackson, Sept 11, 2014 K.Jackson, Sept 11, 2014 A, Initial Release B. AG, January 11, 2019, update solder profile to wave solder Raltron Electronics / RAMI Technology USA, LLC, including its affiliates, employees, agents and other persons acting on its behalf (collectively Raltron/RAMI Tech), disclaim any and all liability for any errors or inaccuracies contained in this data sheet. While Raltron/RAMI Tech has made every reasonable effort ensure the accuracy of all product information, specifications and data contained herein, Raltron/RAMI Tech does not guarantee that the information is accurate, reliable or current. The product information is provided only for reference purposes only and is subject to change, correction or revision, at any time without notice. Raltron/RAMI Tech does not assume any liability arising out of an application or use of any product described herein and disclaims any warranties expressed or implied. The user of products in such applications shall assume all risks of such use and will agree to hold Raltron/RAMI Tech, harmless against all damages. Copyright © 2016, Raltron Electronics / RAMI Technology USA, LLC. All rights reserved. No part of this document may be reproduced in any form without the prior written permission of Raltron Electronics / RAMI Technology USA, LLC R A L T R O N E L E C T R O N I C S ▪ 1 0 4 0 0 N .W . 3 3 r d S T R E E T ▪ M i a m i , F l o r i d a 3 3 1 7 2 ▪ U . S . A . Telephone: 305-593-6033 ▪ Fax: 305-594-3973 ▪ e-mail: sales@raltron.com ▪ web site: http://www.raltron.com